HTTP response header

The Server response-header field contains information about the software used by the web server to handle the request.

Header usage statistics

Server response header information and usage statistics.

Websites using header Server 10,176,670
Percentage of websites that use Server header 87.33%
Total discovered header values 34,094
Header uses directives No
Header values are unique or random No
Most popular in the country United States of America

Connected technologies

Technologies that utilize the header

Apache, category Web Servers, total 3,855,451 websites
Amazon Cloudfront, category Content Delivery Networks, total 117,413 websites
Akamai, category Content Delivery Networks, total 117,151 websites
Amazon S3, category Miscellaneous, total 69,445 websites
Amazon ELB, category Load Balancer, total 46,045 websites
Amazon EC2, category Web Servers, total 33,116 websites
Akka HTTP, category Web Application Frameworks, total 246 websites
AOLserver, category Web Servers, total 81 websites
Airee, category Content Delivery Networks, total 27 websites
Allegro RomPager, category Web Servers, total 12 websites

Distribution by websites popularity

Server detection in the top websites by popularity

Top 10k sites 12,631 websites
Top 100k sites 113,992 websites
Top 1m sites 1,073,480 websites

Websites utilizing Server

List of websites that use Server header

Domain Country Rank Contacts United States of America 1 United States of America 3 United States of America 4 United States of America 4 United States of America 5 United States of America 5
See full domain list

Geographical Distribution

Header usage distribution by websites across the globe.

Common header values

List of top common Server header values

Header value Value prevalence
Apache 27.93%
nginx 20.62%
cloudflare 8.92%
openresty 3.72%
Squarespace 3.42%
LiteSpeed 2.32%
Microsoft-IIS/8.5 2.25%
nginx/1.16.1 2.13%
Microsoft-IIS/10.0 1.52%
GSE 1.10%
Apache/2 1.08%
lapis 0.74%
nginx/1.18.0 0.71%
Microsoft-IIS/7.5 0.68%
AmazonS3 0.65%
Apache/2.4.25 (Debian) 0.56% 0.56%
nginx/1.19.5 0.54%
Apache/2.4.29 (Ubuntu) 0.54%
Apache/2.4.18 (Ubuntu) 0.49%